. >>> back home, former president george w. bush was released from a hospital in texas today. a day after a stent was inserted to open a clogged artery in his heart. the blockage was found during an annual physical the former president had on monday. he's said to be doing well and will resume a normal schedule tomorrow. >>> still ahead tonight, we'll find out how brian is doing after a surgery so many americans are getting these days. >>> but first, pool safety and the danger that may exist in many pools across the country. >>> and later, an irresistible new show in black and white. >>> we're back with an issue that's getting new attention tonight -- pool safety -- after an accident involving the son of a famous singer earlier this week. the child became trapped in the suction of the pool's drain. experts say that's a danger in many pools across the country. here's nbc's tom costello. >> reporter: it was a frantic call to atlanta 911. >> yes. i have -- my nephew was in the pool. and he -- he went and i couldn't get him. >> reporter: the 5-year-old son of pop star usher nearly